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124 | .\" ======================================================================== |
125 | .\" |
126 | .IX Title "FCGI 3" |
127 | .TH FCGI 3 "2010-05-28" "perl v5.8.8" "User Contributed Perl Documentation" |
128 | .\" For nroff, turn off justification. Always turn off hyphenation; it makes |
129 | .\" way too many mistakes in technical documents. |
130 | .if n .ad l |
131 | .nh |
132 | .SH "NAME" |
133 | FCGI \- Fast CGI module |
134 | .SH "SYNOPSIS" |
135 | .IX Header "SYNOPSIS" |
136 | .Vb 1 |
137 | \& use FCGI; |
138 | \& |
139 | \& my $count = 0; |
140 | \& my $request = FCGI::Request(); |
141 | \& |
142 | \& while($request\->Accept() >= 0) { |
143 | \& print("Content\-type: text/html\er\en\er\en", ++$count); |
144 | \& } |
145 | .Ve |
146 | .SH "DESCRIPTION" |
147 | .IX Header "DESCRIPTION" |
148 | Functions: |
149 | .IP "FCGI::Request" 4 |
150 | .IX Item "FCGI::Request" |
151 | Creates a request handle. It has the following optional parameters: |
152 | .RS 4 |
153 | .IP "input perl file handle (default: \e*STDIN)" 8 |
154 | .IX Item "input perl file handle (default: *STDIN)" |
155 | .PD 0 |
156 | .IP "output perl file handle (default: \e*STDOUT)" 8 |
157 | .IX Item "output perl file handle (default: *STDOUT)" |
158 | .IP "error perl file handle (default: \e*STDERR)" 8 |
159 | .IX Item "error perl file handle (default: *STDERR)" |
160 | .PD |
161 | These filehandles will be setup to act as input/output/error |
162 | on succesful Accept. |
163 | .IP "environment hash reference (default: \e%ENV)" 8 |
164 | .IX Item "environment hash reference (default: %ENV)" |
165 | The hash will be populated with the environment. |
166 | .IP "socket (default: 0)" 8 |
167 | .IX Item "socket (default: 0)" |
168 | Socket to communicate with the server. |
169 | Can be the result of the OpenSocket function. |
170 | For the moment, it's the file descriptor of the socket |
171 | that should be passed. This may change in the future. |
172 | .Sp |
173 | You should only use your own socket if your program |
174 | is not started by a process manager such as mod_fastcgi |
175 | (except for the FastCgiExternalServer case) or cgi-fcgi. |
176 | If you use the option, you have to let your FastCGI |
177 | server know which port (and possibly server) your program |
178 | is listening on. |
179 | See remote.pl for an example. |
180 | .IP "flags (default: 0)" 8 |
181 | .IX Item "flags (default: 0)" |
182 | Possible values: |
183 | .RS 8 |
184 | .IP "\s-1FCGI::FAIL_ACCEPT_ON_INTR\s0" 12 |
185 | .IX Item "FCGI::FAIL_ACCEPT_ON_INTR" |
186 | If set, Accept will fail if interrupted. |
187 | It not set, it will just keep on waiting. |
188 | .RE |
189 | .RS 8 |
190 | .RE |
191 | .RE |
192 | .RS 4 |
193 | .Sp |
194 | Example usage: |
195 | my \f(CW$req\fR = FCGI::Request; |
196 | .Sp |
197 | or: |
198 | my \f(CW%env\fR; |
199 | my \f(CW$in\fR = new IO::Handle; |
200 | my \f(CW$out\fR = new IO::Handle; |
201 | my \f(CW$err\fR = new IO::Handle; |
202 | my \f(CW$req\fR = FCGI::Request($in, \f(CW$out\fR, \f(CW$err\fR, \e%env); |
203 | .RE |
204 | .IP "FCGI::OpenSocket(path, backlog)" 4 |
205 | .IX Item "FCGI::OpenSocket(path, backlog)" |
206 | Creates a socket suitable to use as an argument to Request. |
207 | .RS 4 |
208 | .IP "path" 8 |
209 | .IX Item "path" |
210 | Pathname of socket or colon followed by local tcp port. |
211 | Note that some systems take file permissions into account |
212 | on Unix domain sockets, so you'll have to make sure that |
213 | the server can write to the created file, by changing |
214 | the umask before the call and/or changing permissions and/or |
215 | group of the file afterwards. |
216 | .IP "backlog" 8 |
217 | .IX Item "backlog" |
218 | Maximum length of the queue of pending connections. |
219 | If a connection |
220 | request arrives with the queue full the client may receive |
221 | an error with an indication of \s-1ECONNREFUSED\s0. |
222 | .RE |
223 | .RS 4 |
224 | .RE |
225 | .IP "FCGI::CloseSocket(socket)" 4 |
226 | .IX Item "FCGI::CloseSocket(socket)" |
227 | Close a socket opened with OpenSocket. |
228 | .ie n .IP "$req\->\fIAccept()\fR" 4 |
229 | .el .IP "\f(CW$req\fR\->\fIAccept()\fR" 4 |
230 | .IX Item "$req->Accept()" |
231 | Accepts a connection on \f(CW$req\fR, attaching the filehandles and |
232 | populating the environment hash. |
233 | Returns 0 on success. |
234 | If a connection has been accepted before, the old |
235 | one will be finished first. |
236 | .Sp |
237 | Note that unlike with the old interface, no die and warn |
238 | handlers are installed by default. This means that if |
239 | you are not running an sfio enabled perl, any warn or |
240 | die message will not end up in the server's log by default. |
241 | It is advised you set up die and warn handlers yourself. |
242 | \&\s-1FCGI\s0.pm contains an example of die and warn handlers. |
243 | .ie n .IP "$req\->\fIFinish()\fR" 4 |
244 | .el .IP "\f(CW$req\fR\->\fIFinish()\fR" 4 |
245 | .IX Item "$req->Finish()" |
246 | Finishes accepted connection. |
247 | Also detaches filehandles. |
248 | .ie n .IP "$req\->\fIFlush()\fR" 4 |
249 | .el .IP "\f(CW$req\fR\->\fIFlush()\fR" 4 |
250 | .IX Item "$req->Flush()" |
251 | Flushes accepted connection. |
252 | .ie n .IP "$req\->\fIDetach()\fR" 4 |
253 | .el .IP "\f(CW$req\fR\->\fIDetach()\fR" 4 |
254 | .IX Item "$req->Detach()" |
255 | Temporarily detaches filehandles on an accepted connection. |
256 | .ie n .IP "$req\->\fIAttach()\fR" 4 |
257 | .el .IP "\f(CW$req\fR\->\fIAttach()\fR" 4 |
258 | .IX Item "$req->Attach()" |
259 | Re-attaches filehandles on an accepted connection. |
260 | .ie n .IP "$req\->\fILastCall()\fR" 4 |
261 | .el .IP "\f(CW$req\fR\->\fILastCall()\fR" 4 |
262 | .IX Item "$req->LastCall()" |
263 | Tells the library not to accept any more requests on this handle. |
264 | It should be safe to call this method from signal handlers. |
265 | .Sp |
266 | Note that this method is still experimental and everything |
267 | about it, including its name, is subject to change. |
268 | .ie n .IP "$env = $req\->\fIGetEnvironment()\fR" 4 |
269 | .el .IP "\f(CW$env\fR = \f(CW$req\fR\->\fIGetEnvironment()\fR" 4 |
270 | .IX Item "$env = $req->GetEnvironment()" |
271 | Returns the environment parameter passed to FCGI::Request. |
272 | .ie n .IP "($in, $out, $err) = $req\->\fIGetHandles()\fR" 4 |
273 | .el .IP "($in, \f(CW$out\fR, \f(CW$err\fR) = \f(CW$req\fR\->\fIGetHandles()\fR" 4 |
274 | .IX Item "($in, $out, $err) = $req->GetHandles()" |
275 | Returns the file handle parameters passed to FCGI::Request. |
276 | .ie n .IP "$isfcgi = $req\->\fIIsFastCGI()\fR" 4 |
277 | .el .IP "\f(CW$isfcgi\fR = \f(CW$req\fR\->\fIIsFastCGI()\fR" 4 |
278 | .IX Item "$isfcgi = $req->IsFastCGI()" |
279 | Returns whether or not the program was run as a FastCGI. |
280 | .SH "AUTHOR" |
281 | .IX Header "AUTHOR" |
282 | Sven Verdoolaege <skimo@kotnet.org> |